38
Quadruple mode
5-3-2. High-speed counter range
The counting range of high-speed counter is: -2147483648 ~ +2147483647. When the count value exceeds this
range, overflow or underflow occurs.
The overflow means that the count value jumps from +2147483647 to -2147483648 and continues counting.
When underflow occurs, the count value jumps from -2147483648 to +2147483647 and continues counting.
5-3-3. High-speed counter input wiring
For the counting pulse input terminal wiring, it is slightly different according to the programmable controller
type and counter model. Several typical input terminal wiring methods are shown in the following figure:
(1)
Incremental mode
L+
M
X0+
X0-
X1+
X1-
X3+
X3-
X4
X2
Pulse input
(Counter 0)
(2)
AB phase mode
L+
M
X0+
X0-
X1+
X1-
X3+
X3-
X4
X2
Phase A input
Phase B input
(Counter 0)
5-3-4. Input terminal assignment
(1)
XSDH/XS3/XSLH series PLC high speed counter channels:
PLC model
High speed counter channel
Incremental mode
AB phase mode
XSDH
60 points
4
4
XS3
26 points
4
4
XSLH
30 points
4
4
